Im having a very sharp pain on the right side of my abdomen when i bend down cough or sneeze is an instant sharb stabbing pain?

Possible hernia: The most concerning/urgent possibility would be appendicitis, but that would not get better, but only get worse over a few days and you would have decreased appetite and fevers. An ovarian cyst is possible but usually hurt regardless of movement. The most likely possibility is a hernia or muscle strain in your lower abdominal muscles.